Method and apparatus for transmitting control information in a wireless communication system

Patent metadata

Field	Value
Publication number	US-9749117-B2
Application number	US-201214233450-A
Country	US
Kind code	B2
Filing date	Jul 26, 2012
Priority date	Jul 26, 2011
Publication date	Aug 29, 2017
Grant date	Aug 29, 2017

Abstract

One embodiment of the present invention relates to a method for transmitting control information by a base station, comprising the steps of: transmitting data through a physical downlink shared channel (PDSCH); and receiving a receipt acknowledgement in response to said data in the 4 th subframe following the subframe in which said data is transmitted. When downlink control information that indicates said PDSCH is transmitted in a resource region not including a resource indicated by a physical control format indication channel, the downlink control information is transmitted in k th subframe prior to the subframe in which the PDSCH is transmitted.

First claim

What is claimed is:

1. A method of transmitting control information, which is transmitted by an eNode B in a wireless communication system, comprising the steps of:
transmitting a downlink control information (DCI) indicating a PDSCH on a data region of a specific subframe,
wherein the data region corresponds to symbols in the specific subframe except a first 3 or 4 symbols indicated by a physical control format indication channel (PCFICH);
transmitting a data on the PDSCH in a k-th following subframe of the specific subframe; and
receiving a reception confirmation response for the data in a (k+4)-th following subframe from the specific subframe.

2. The method of claim 1 , wherein the k is determined in consideration of at least one selected from the group consisting of a cell size, a processing time of a user equipment (UE), and a position of the UE within a cell.

3. The method of claim 1 , wherein the DCI is transmitted in a subframe immediately before a subframe in which the PDSCH is transmitted.

4. The method of claim 1 , wherein the DCI does not indicate any PDSCH except the PDSCH.

5. A method of receiving control information, which is received by a user equipment (UE) in a wireless communication system, comprising the steps of:
receiving a downlink control information (DCI) indicating a PDSCH on a data region of a specific subframe,
wherein the data region corresponds to symbols in the specific subframe except a first 3 or 4 symbols indicated by a physical control format indication channel (PCFICH);
receiving a data on the PDSCH in a k-th following subframe of the specific subframe; and
transmitting a reception confirmation response for the data in a (k+4)-th following subframe from the specific subframe.

6. The method of claim 5 , wherein the k is determined in consideration of at least one selected from the group consisting of a cell size, a processing time of a user equipment (UE), and a position of the UE within a cell.

7. The method of claim 5 , wherein the DCI is transmitted in a subframe immediately before a subframe in which the PDSCH is transmitted.

8. The method of claim 5 , wherein the DCI does not indicate any PDSCH except the PDSCH.

9. An eNode B in a wireless communication system, comprising:
a Radio Frequency (RF) module; and
a processor operably coupled with the RF module and configured to:
transmit a downlink control information (DCI) indicating a PDSCH on a data region of a specific subframe,
wherein the data region corresponds to symbols in the specific subframe except a first 3 or 4 symbols indicated by a physical control format indication channel (PCFICH);
transmit a data on the PDSCH in a k-th following subframe of the specific subframe; and
receive a reception confirmation response for the data in a (k+4)-th following subframe from the specific subframe.

10. A user equipment (UE) in a wireless communication system, comprising:
a Radio Frequency (RF) module; and
a processor operably coupled with the RF module and configured to:
receive a downlink control information (DCI) indicating a PDSCH on a data region of a specific subframe,
wherein the data region corresponds to symbols in the specific subframe except a first 3 or 4 symbols indicated by a physical control format indication channel (PCFICH);
receive a data on the PDSCH in a k-th following subframe of the specific subframe; and
transmit a reception confirmation response for the data in a (k+4)-th following subframe from the specific subframe.

Assignees

• Ko Hyunsoo
• Kim Kitae
• Chung Jaehoon
• Lg Electronics Inc

Inventors

• Ko Hyunsoo
• Kim Kitae
• Chung Jaehoon

Classifications

• H04L1/1819

  with retransmission of additional or different redundancy · CPC title

• H04L5/0092 Primary

  Indication of how the channel is divided · CPC title

• H04L1/1854 Primary

  Scheduling and prioritising arrangements · CPC title

• H04J11/0023 Primary

  Interference mitigation or co-ordination (direct sequence spread spectrum [DSSS] systems H04B1/7097; frequency hopping H04B1/713; allocation criteria for ingress interference avoidance H04L5/0062; frequency allocation criteria for requirements on out-of-channel emissions H04L5/0066; arrangements for removing intersymbol interference or baseband equalisers H04L25/03006; peak power aspects in multicarrier modulation H04L27/2614; power management H04W52/00; traffic scheduling H04W72/54, H04W72/541) · CPC title

• H04L1/16

  in which the return channel carries supervisory signals, e.g. repetition request signals · CPC title